
SMS OTP
SMS OTP (One-Time Password) is a one-time password sent to a user’s mobile phone via SMS to verify their identity and perform online transactions or access account information. This OTP has a limited duration or can only be used once to increase security and prevent someone who does not receive the code from accessing the information.
SMS OTP is usually a 4 or 6 digit code with a limited validity period. If the code is entered incorrectly or exceeds the validity period, the transaction will fail.

SMS OTP and MFA (Multi-Factor Authentication)
SMS OTP is part of the multi-factor authentication (MFA) process, which provides additional security for accessing accounts or data, preventing unauthorized access and effectively reducing transaction risks.

Highlights of SMS OTP
Increased security
• OTP can be used only once, reducing the risk of data hacking.
• Supports more secure Two-Factor Authentication (2FA).
Easy to use
• No need to install the application, can send OTP via SMS that supports all mobile phones
• Users do not need to have technological expertise.
Cost saving
• The cost of sending OTP via SMS is low compared to investing in complex solutions.
• Reduces the cost of developing additional security systems.
Send quick messages
• SMS OTP takes only a few seconds to reach the user
• Reduce waiting time and make the process fast.
Accessible to all user groups
• Supports all target groups, whether using smartphones or feature phones
• Increases the opportunity to reach customers comprehensively
Build credibility for your business
• Using OTP reflects our concern for security and service standards.
• It helps build customer confidence.
Suitable for a variety of businesses
• Can be used in banking, e-commerce, subscription services, and other platforms
• Used to verify identity in a variety of situations, such as logging in, making transactions, or changing passwords
Increase customer satisfaction
• Provides a convenient, secure and uncomplicated customer experience
• Helps to smoothen customer operations
Connecting the SMS OTP system with Thaifastsms allows businesses to send OTP codes quickly and securely.
- The system sends SMS OTP messages to customers within 5 seconds.
- Support all mobile networks
- You can set the Sender Name to your business name.
- You can customize the OTP message or template as per your requirement.
- You can specify the numbers in the OTP code, such as 4 or 6 digits.
- Set an OTP expiration time for added security.
- Easily connect APIs to your systems
- SMS OTP sending information is highly secure.
- Ready to use without further development
- Support team is ready to help at any time.
